Overview

Calcium bromate is an inorganic salt with the formula Ca(BrO3)2. It consists of calcium cations (Ca2+) and bromate anions (BrO3−). As a member of the bromate family it behaves as an oxidizing agent and appears as a white, crystalline solid under ordinary conditions. For a basic reference see chemical summary.

Properties and chemistry

The compound is ionic and typically soluble in water to form a solution containing bromate ions. Its key chemical characteristics include oxidizing behavior, stability in neutral to mildly basic media, and reducibility to bromide (Br−) by suitable reducing agents. Typical points of interest:

  • Formula: Ca(BrO3)2; contains Ca2+ and two BrO3− ions.
  • Oxidizing agent: reacts with reducing substances and organic materials.
  • Chemical transformations: bromate can be reduced to bromide and may produce bromine under strongly acidic or reductive conditions.

Preparation

Calcium bromate can be prepared in laboratory settings from bromate-containing reagents and soluble calcium salts or by neutralizing bromic acid with calcium hydroxide or carbonate. Industrial or preparative methods resemble those used for other metal bromates, typically involving salt metathesis or controlled oxidation of bromide in the presence of calcium ions. For procedural details consult authoritative methods resources preparation notes.

Uses and importance

Bromate salts generally serve as oxidants in organic synthesis, analytical chemistry and specialized industrial processes. Calcium bromate is less commonly encountered than sodium or potassium bromate but can be used where a calcium counter-ion is preferred. Its practical roles are similar to other bromates: as a reagent for selective oxidations and in laboratory-scale studies of bromate chemistry. Additional context and examples are available in chemical databases and reagent catalogs further reading.

Safety, handling and environmental concerns

Bromate anions are toxic and have been associated with adverse health effects in animal studies; some bromate salts have been restricted in food-related applications. Calcium bromate, as an oxidizer and a source of bromate, should be handled with appropriate precautions: store away from reducing agents and combustible materials, use protective equipment, and avoid release to the environment. Monitoring and regulatory guidance on bromate in water and consumer products can be found through public health resources regulatory guidance.